May be fatal if swallowed or inhaled. This material is a neurotoxin. Can affect the gum tissue, central nervous system, kidneys, blood, and reproductive system. Possible cancer hazard. May cause cancer based on animal data. Risk of cancer depends on duration and level of exposure. May cause allergic skin reaction. Fumes from the soldering/brazing process are irritating to the eyes and respiratory system. Hot metal can cause eye and skin burns. Avoid breathing fumes from the soldering/brazing process. Use only with adequate ventilation.